The Moon on every day of 1931
What the Moon looked like the day you were born, for every day of 1931. Tap your day to see how much of it was lit, then start counting your exact time alive.
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1931 at a glance
Full moons13 full moons, including a blue moon on May 31.
Largest full moonMarch 4, 356,632 km away. The smallest was September 26 at 406,262 km.
Eclipses3 solar and 2 lunar, listed below.
Find your dayTap any day for its Moon, the date you turn 10,000 days old, and roughly when you pass 1 billion seconds.
Every day of 1931
January 1931
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February 1931
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March 1931
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April 1931
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May 1931
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June 1931
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July 1931
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August 1931
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September 1931
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October 1931
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November 1931
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December 1931
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Full moons in 1931
- January 4, 13:15 UTC
- February 3, 00:26 UTC
- March 4, 10:36 UTC
- April 2, 20:05 UTC
- May 2, 05:14 UTC
- May 31, 14:33 UTC (blue moon)
- June 30, 00:47 UTC
- July 29, 12:48 UTC
- August 28, 03:10 UTC
- September 26, 19:45 UTC
- October 26, 13:34 UTC
- November 25, 07:10 UTC
- December 24, 23:24 UTC
New moons in 1931
- January 18, 18:36 UTC
- February 17, 13:11 UTC
- March 19, 07:51 UTC
- April 18, 01:00 UTC
- May 17, 15:28 UTC
- June 16, 03:02 UTC
- July 15, 12:20 UTC
- August 13, 20:27 UTC
- September 12, 04:26 UTC
- October 11, 13:06 UTC
- November 9, 22:55 UTC
- December 9, 10:16 UTC
Eclipses in 1931
- April 18: Partial solar eclipse
- September 12: Partial solar eclipse
- October 11: Partial solar eclipse
- April 2: Total lunar eclipse
- September 26: Total lunar eclipse
How this is worked out
Each day shows the Moon at 12:00 noon UTC, drawn as seen from the northern hemisphere, computed with astronomy-engine, the same engine Sky checks against NASA JPL Horizons. The Moon's phase is the same everywhere at one instant, but the date changes with time zones, so close to a new or full moon your local day can differ. Alive uses your exact birth time and place, and it stays on your phone.